Poly(hexamethylene adipamide)
[化] 聚己二酰己二胺; 尼龙-66
🗣️ 情景例句
You should use 'officer' to address a policeman.
你应该用 'officer' 来称呼警察。
How about feed-back from your retailers and consumers?
你们的零售商和消费者的反映怎样？
Don't forget us.
别忘了我们。